This commit is contained in:
seb
2026-10-29 02:55:49 +01:00
parent 158748c5e6
commit 907ee998c0
2 changed files with 0 additions and 106 deletions

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-- Rename article "father" columns to "parent" (SQL Server / MSSQL).
--
-- One-off manual migration (no migration code is kept in the repo).
-- sqlcmd -S <server> -d <db> -E -i scripts/migrate-parent-rename.mssql.sql
--
-- Guarded and safe to re-run. Safe to retry after a partial run.
--
-- NOTE ON BATCHING: sp_rename is deferred and its effect is not visible to
-- subsequent statements in the SAME batch. Each rename therefore runs in its
-- own batch (GO), and constraint/index recreation happens after a GO so the
-- new column names resolve.
SET XACT_ABORT ON;
GO
BEGIN TRANSACTION;
GO
-- Drop the old filtered unique index (references fathersort).
IF EXISTS (SELECT 1 FROM sys.indexes WHERE name = 'UQ_article_fatherarticle_fathersort')
DROP INDEX UQ_article_fatherarticle_fathersort ON article;
GO
-- Drop the default constraints bound to the old column names.
IF EXISTS (SELECT 1 FROM sys.default_constraints WHERE name = 'DF_article_is_father')
ALTER TABLE article DROP CONSTRAINT DF_article_is_father;
IF EXISTS (SELECT 1 FROM sys.default_constraints WHERE name = 'DF_article_fathersort')
ALTER TABLE article DROP CONSTRAINT DF_article_fathersort;
GO
-- Drop foreign keys bound to the old columns.
IF EXISTS (SELECT 1 FROM sys.foreign_keys WHERE name = 'FK_article_fatherarticle')
ALTER TABLE article DROP CONSTRAINT FK_article_fatherarticle;
IF EXISTS (SELECT 1 FROM sys.foreign_keys WHERE name = 'FK_article_fatherattributename')
ALTER TABLE article DROP CONSTRAINT FK_article_fatherattributename;
GO
-- Rename the columns (each sp_rename must be its own batch).
IF COL_LENGTH('article', 'fatherarticle_id') IS NOT NULL
AND COL_LENGTH('article', 'parentarticle_id') IS NULL
EXEC sp_rename 'article.fatherarticle_id', 'parentarticle_id', 'COLUMN';
GO
IF COL_LENGTH('article', 'fatherattributename_id') IS NOT NULL
AND COL_LENGTH('article', 'parentattributename_id') IS NULL
EXEC sp_rename 'article.fatherattributename_id', 'parentattributename_id', 'COLUMN';
GO
IF COL_LENGTH('article', 'fathersort') IS NOT NULL
AND COL_LENGTH('article', 'parentsort') IS NULL
EXEC sp_rename 'article.fathersort', 'parentsort', 'COLUMN';
GO
IF COL_LENGTH('article', 'is_father') IS NOT NULL
AND COL_LENGTH('article', 'is_parent') IS NULL
EXEC sp_rename 'article.is_father', 'is_parent', 'COLUMN';
GO
COMMIT TRANSACTION;
GO
-- Recreate the constraints under their new names (after the rename batches).
IF NOT EXISTS (SELECT 1 FROM sys.foreign_keys WHERE name = 'FK_article_parentarticle')
ALTER TABLE article ADD CONSTRAINT FK_article_parentarticle
FOREIGN KEY (parentarticle_id) REFERENCES article(id) ON DELETE NO ACTION;
GO
IF NOT EXISTS (SELECT 1 FROM sys.foreign_keys WHERE name = 'FK_article_parentattributename')
ALTER TABLE article ADD CONSTRAINT FK_article_parentattributename
FOREIGN KEY (parentattributename_id) REFERENCES attributename(id) ON DELETE NO ACTION;
GO
IF NOT EXISTS (SELECT 1 FROM sys.default_constraints WHERE name = 'DF_article_is_parent')
ALTER TABLE article ADD CONSTRAINT DF_article_is_parent DEFAULT (0) FOR is_parent;
GO
IF NOT EXISTS (SELECT 1 FROM sys.default_constraints WHERE name = 'DF_article_parentsort')
ALTER TABLE article ADD CONSTRAINT DF_article_parentsort DEFAULT (0) FOR parentsort;
GO
IF NOT EXISTS (SELECT 1 FROM sys.indexes WHERE name = 'UQ_article_parentarticle_parentsort')
CREATE UNIQUE INDEX UQ_article_parentarticle_parentsort
ON article (parentarticle_id, parentsort)
WHERE parentarticle_id IS NOT NULL;
GO
-- Verify
SELECT 'COL:' + c.name AS result
FROM sys.columns c
WHERE c.object_id = OBJECT_ID('article')
AND (c.name LIKE '%father%' OR c.name LIKE '%parent%');
GO

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-- Rename article "father" columns to "parent".
--
-- One-off manual migration (no migration code is kept in the repo).
-- sqlite3 data/dash.db < scripts/migrate-parent-rename.sqlite.sql
--
-- Safe to re-run: every step is guarded by a column-existence check.
ALTER TABLE article RENAME COLUMN fatherarticle_id TO parentarticle_id;
ALTER TABLE article RENAME COLUMN fatherattributename_id TO parentattributename_id;
ALTER TABLE article RENAME COLUMN fathersort TO parentsort;
ALTER TABLE article RENAME COLUMN is_father TO is_parent;
-- Verify
PRAGMA table_info(article);